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Horizontal Mergers, Involuntary Unemployment, and Welfare

  • Oliver Budzinski

    ()

    (University of Southern Denmark)

  • Jürgen-Peter Kretschmer

    ()

    (Philipps-University of Marburg)

Standard welfare analysis of horizontal mergers usually refers to two effects: the anticompetitive market power effect reduces welfare by enabling firms to charge prices above marginal costs, whereas the procompetitive efficiency effect increases welfare by reducing the costs of production (synergies). However, demand-side effects of synergies are usually neglected. We introduce them into a standard oligopoly model of horizontal merger by assuming an (empirically supported) decrease in labour demand due to merger-specific synergies and derive welfare effects. We find that efficiency benefits from horizontal mergers are substantially decreased, if involuntary unemployment exists. However, in full employment economies, demand-side effects remain negligible. Eventually, policy conclusions for merger control are discussed.

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File URL: http://www.uni-marburg.de/fb02/makro/forschung/magkspapers/07-2009_budzinski.pdf
File Function: First version, 2009
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Paper provided by Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung) in its series MAGKS Papers on Economics with number 200907.

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Length: 22 pages
Date of creation: 2009
Date of revision:
Publication status: Forthcoming in
Handle: RePEc:mar:magkse:200907
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  1. David Margolis, 2006. "Should Employment Authorities Worry About Mergers and Acquisitions?," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00364563, HAL.
  2. Farrell, Joseph & Shapiro, Carl, 2000. "Scale Economies and Synergies in Horizontal Merger Analysis," Competition Policy Center, Working Paper Series qt8v1500b8, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
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  11. Budzinski, Oliver, 2007. "Monoculture versus diversity in competition economics," IBES Diskussionsbeiträge 158, University of Duisburg-Essen, Institute of Business and Economic Studie (IBES).
  12. Joseph A. Clougherty & Tomaso Duso, 2008. "The Impact of Horizontal Mergers on Rivals: Gains to Being Left Outside a Merger," CIG Working Papers SP II 2008-17r, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG), revised Feb 2009.
  13. David Margolis, 2006. "Should Employment Authorities Worry About Mergers and Acquisitions?," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00202292, HAL.
  14. d’ASPREMONT, C. & DOS SANTOS FERREIRA, R. & GERARD-VARET, L.-A., 1986. "On monopolistic competition and involuntary unemployment," CORE Discussion Papers 1986035, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  15. Dennis W. Carlton, 2007. "Does Antitrust Need to be Modernized?," EAG Discussions Papers 200703, Department of Justice, Antitrust Division.
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  17. d'Aspremont, Claude & Dos Santos Ferreira, Rodolphe & Gerard-Varet, Louis-Andre, 1989. "Unemployment in an Extended Cournot Oligopoly Model," Oxford Economic Papers, Oxford University Press, vol. 41(3), pages 490-505, July.
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  23. Gersbach, Hans, 2000. "Promoting Product Market Competition to Reduce Unemployment in Europe: An Alternative Approach?," Kyklos, Wiley Blackwell, vol. 53(2), pages 117-33.
  24. Salant, Stephen W & Switzer, Sheldon & Reynolds, Robert J, 1983. "Losses from Horizontal Merger: The Effects of an Exogenous Change in Industry Structure on Cournot-Nash Equilibrium," The Quarterly Journal of Economics, MIT Press, vol. 98(2), pages 185-99, May.
  25. Paolo Fulghieri & Laurie Simon Hodrick, 2006. "Synergies and Internal Agency Conflicts: The Double-Edged Sword of Mergers," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 15(3), pages 549-576, 09.
  26. Erkki Koskela & Rune Stenbacka, 2005. "Product Market Competition, Profit Sharing and Equilibrium Unemployment," CESifo Working Paper Series 1603, CESifo Group Munich.
  27. Ken Heyer, 2006. "Welfare Standards and Merger Analysis: Why Not the Best?," CPI Journal, Competition Policy International, vol. 2.
  28. Wolfgang Kerber, 2009. "Should Competition Law Promote Efficiency? Some Reflections of an Economist on the Normative Foundations of Competition Law," Chapters, in: Economic Theory and Competition Law, chapter 6 Edward Elgar.
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